diff options
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pci.c | 4 | ||||
| -rw-r--r-- | drivers/pci/probe.c | 12 |
2 files changed, 11 insertions, 5 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 4e720ed402ef..66c12c8f968b 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1993,6 +1993,10 @@ bool pci_dev_run_wake(struct pci_dev *dev) if (!dev->pme_support) return false; + /* PME-capable in principle, but not from the intended sleep state */ + if (!pci_pme_capable(dev, pci_target_state(dev))) + return false; + while (bus->parent) { struct pci_dev *bridge = bus->self; diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 993ff22df7ec..3c4e709cf9a1 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -982,6 +982,7 @@ void set_pcie_port_type(struct pci_dev *pdev) pos = pci_find_capability(pdev, PCI_CAP_ID_EXP); if (!pos) return; + pdev->pcie_cap = pos; pci_read_config_word(pdev, pos + PCI_EXP_FLAGS, ®16); pdev->pcie_flags_reg = reg16; @@ -989,13 +990,14 @@ void set_pcie_port_type(struct pci_dev *pdev) pdev->pcie_mpss = reg16 & PCI_EXP_DEVCAP_PAYLOAD; /* - * A Root Port is always the upstream end of a Link. No PCIe - * component has two Links. Two Links are connected by a Switch - * that has a Port on each Link and internal logic to connect the - * two Ports. + * A Root Port or a PCI-to-PCIe bridge is always the upstream end + * of a Link. No PCIe component has two Links. Two Links are + * connected by a Switch that has a Port on each Link and internal + * logic to connect the two Ports. */ type = pci_pcie_type(pdev); - if (type == PCI_EXP_TYPE_ROOT_PORT) + if (type == PCI_EXP_TYPE_ROOT_PORT || + type == PCI_EXP_TYPE_PCIE_BRIDGE) pdev->has_secondary_link = 1; else if (type == PCI_EXP_TYPE_UPSTREAM || type == PCI_EXP_TYPE_DOWNSTREAM) { |